This gives rise to a question I have within the same subject matter. My guys are still 2 each to a 5.5 gal QT tank. Everyone is around 2", except Jelly Bean who is maybe 1 3/4". I wanted to transition all four into a 10 gal tank together, but I still need to keep them separate apparently (even though all were together in the same tank at the same time at Petco) due to still being treated for cocci. However, I would love my guys to have more space, so would it be ok to move each pair into a 10 gallon tank at this point?

Current QT setups:
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